Due to osmosis, or the movement of unoccupied water molecules to places where there are fewer of them, water will want to flow into a cell that has lots of ions inside of it. The cell membrane slows the movement of water into or out of the cell, which helps the cell maintain a certain volume.
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Answer: Na+ channels are closed
Explanation:
The refractory period describes a period between the initiation of an action potential (where Na+ channels are active/open), and immediately after the action potential’s peak. In the absolute refractory period, action potentials cannot be generated, as Na+ channels are in an inactive or closed state, they usually take around one or two minutes.
After the absolute refractory period the relative refractory period (RRP) occurs. During the RRP, it is hard to send another action potential. Na+ channels are once again open, but the cell remains hyperpolarized- its membrane potential, remains negative. Recovery from inactivation is voltage and time-dependent; Action potentials would require an influx of more positively charged ions. These must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.
The synthesis of thyroid hormones requires the iodination of tyrosine molecules and the combination of two iodinated tyrosine residues
The action potential generated through a threshold or suprathreshold stimulus on a neuron.
<h3>Where is the action potential generated?</h3>
The action potential (AP) originates thanks to a disturbance of the resting state of the cell membrane, with consequent flow of ions through the membrane and alteration of the ionic concentration in the intra and extracellular environments.
In this case, is a rapid change in the electrical potential of neuron membranes.
See more about action potential at brainly.com/question/4305583
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Answer: Homeostasis is the cell membrane is a responsible for maintaining a stable internal environment